Important: exim

Issue Overview:

Exim through 4.93 has an out-of-bounds read in the SPA authenticator that could result in SPA/NTLM authentication bypass in auths/spa.c and auths/auth-spa.c. (CVE-2020-12783)

Affected Packages:

exim

Issue Correction:
Run yum update exim to update your system.

New Packages:

i686:  
    exim-4.92-1.26.amzn1.i686  
    exim-pgsql-4.92-1.26.amzn1.i686  
    exim-mysql-4.92-1.26.amzn1.i686  
    exim-greylist-4.92-1.26.amzn1.i686  
    exim-mon-4.92-1.26.amzn1.i686  
    exim-debuginfo-4.92-1.26.amzn1.i686  
  
src:  
    exim-4.92-1.26.amzn1.src  
  
x86_64:  
    exim-mysql-4.92-1.26.amzn1.x86_64  
    exim-4.92-1.26.amzn1.x86_64  
    exim-mon-4.92-1.26.amzn1.x86_64  
    exim-debuginfo-4.92-1.26.amzn1.x86_64  
    exim-greylist-4.92-1.26.amzn1.x86_64  
    exim-pgsql-4.92-1.26.amzn1.x86_64  

Additional References

Red Hat: CVE-2020-12783

Mitre: CVE-2020-12783